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4.3 Thermal Analysis machine will operate under speed less than 1000rpm for a long duration. significant amount of the heat out, thus its outlet temperature is similar to the development without stalling or negative pressure. However, further analysis

Table 2 4.3 Thermal Analysis machine will operate under speed less than 1000rpm for a long duration. significant amount of the heat out, thus its outlet temperature is similar to the development without stalling or negative pressure. However, further analysis

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Fig. 1: The CFD model based on modular CAD design that combines all designs and: (a) Design 1 — inlet on top to outlet at bottom, (b) Design 2 — tangential inlet-outlet and (c) Design 3 — conventional centrifugal fan
Fig. 1: The CFD model based on modular CAD design that combines all designs and: (a) Design 1 — inlet on top to outlet at bottom, (b) Design 2 — tangential inlet-outlet and (c) Design 3 — conventional centrifugal fan
Fig. 2: Detail drawing of the 3D CFD model including section A-A and section B-B. Fig. 2: Detail drawing of the 3D CFD model including section A-A and section
Fig. 2: Detail drawing of the 3D CFD model including section A-A and section B-B. Fig. 2: Detail drawing of the 3D CFD model including section A-A and section
Table 1: Material Properties
Table 1: Material Properties
Fig. 3: The torque, rotor losses and magnet losses of a YASA sealed machine produced by FEA.
Fig. 3: The torque, rotor losses and magnet losses of a YASA sealed machine produced by FEA.
Fig. 4: Pressure drop of the studied designs.
Fig. 4: Pressure drop of the studied designs.
Fig. 5: Windage losses of the studied designs
Fig. 5: Windage losses of the studied designs
Fig. 6: Average air temperature on (a) the outlet and (b) within the rotational system. Fig. 8 presents the average temperature of the rotor and the magnet. The
Fig. 6: Average air temperature on (a) the outlet and (b) within the rotational system. Fig. 8 presents the average temperature of the rotor and the magnet. The
Fig. 7: Flow streamlines of each design and its ISO surface of low velocity region (<10m/s) at 4000rpm in blue translucent patches. Fig. 7: Flow streamlines of each design and its ISO surface of low velocity
Fig. 7: Flow streamlines of each design and its ISO surface of low velocity region (<10m/s) at 4000rpm in blue translucent patches. Fig. 7: Flow streamlines of each design and its ISO surface of low velocity
Fig. 8: Average solid temperature of the rotor and the magnets for (a) Design 1, (b) Design 2 and (c) Design 3.
Fig. 8: Average solid temperature of the rotor and the magnets for (a) Design 1, (b) Design 2 and (c) Design 3.
Fig. 9: Average heat transfer coefficient of the studied designs
Fig. 9: Average heat transfer coefficient of the studied designs
Fig. 10: Cooling Performance Index (CPI) curves of all tested designs.
Fig. 10: Cooling Performance Index (CPI) curves of all tested designs.
Fig. 11: The YASA machine assembly integrated with Design 2 and Design 3 inlet and outlet arrangement including dual mass flow sensors on the inlet. DE - disc side, before exiting to the ambient. Fig. 11: The YASA machine assembly integrated with Design 2 and Design 3 inlet and outlet arrangement including dual mass flow sensors on the inlet. Page 14 of 25
Fig. 11: The YASA machine assembly integrated with Design 2 and Design 3 inlet and outlet arrangement including dual mass flow sensors on the inlet. DE - disc side, before exiting to the ambient. Fig. 11: The YASA machine assembly integrated with Design 2 and Design 3 inlet and outlet arrangement including dual mass flow sensors on the inlet. Page 14 of 25
‘ig. 12: The new YASA machine topology including rotor cooling on both rotors. the NDE side until the simulations converge. study. In reality a thin layer of adhesive material is present between the
‘ig. 12: The new YASA machine topology including rotor cooling on both rotors. the NDE side until the simulations converge. study. In reality a thin layer of adhesive material is present between the
Fig. 13: The prototype of the new YASA machine topology in-cooperate with dual rotor cooling via the air transfer duct.
Fig. 13: The prototype of the new YASA machine topology in-cooperate with dual rotor cooling via the air transfer duct.
Fig. 14: Comparison between CFD and experimental data of the mass flow rate. Fig. 14: Comparison between CFD and experimental data of the mass flow
Fig. 14: Comparison between CFD and experimental data of the mass flow rate. Fig. 14: Comparison between CFD and experimental data of the mass flow
Fig. 15: Average air temperature on the outlet and within the rotational system of the design implementation. (Fig. 16-a) as compared to the initial study.
Fig. 15: Average air temperature on the outlet and within the rotational system of the design implementation. (Fig. 16-a) as compared to the initial study.
Fig. 17: Average solid temperature of the rotor and the magnets of the design implementation. Fig. 17: Average solid temperature of the rotor and the magnets of the design
Fig. 17: Average solid temperature of the rotor and the magnets of the design implementation. Fig. 17: Average solid temperature of the rotor and the magnets of the design
Related topics:
Mechanical EngineeringMaterials ScienceInterdisciplinary EngineeringApplied Thermal EngineeringRotor Cooling
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